that's a tough one.
it sounds to me like your woodriff key is loose, broken or missing.
cam and crank gear keeper bolts
could be coming loose or stripped.
may even be a bad cam shaft bearing.
or a crank shaft bearing.
oh. chain could be wrong size as well.
valve springs to stiff/not worn in maybe? they could be causing the cam to bind a little so the crank's compression is just yanking on the chain causing it to jump.
I'm sorry, you need to specify more info.. like, How do you know its the timing chain or belt (did not specify engine type) etc..
It won't jump time! (but once) Then it quites and most likely wipes out some valves in the process. Makes no difference if it is a overhead cam with a timing belt or an in block camshaft driven by gears or a timing chain set. Once it jumps time that's it until it' repaired. The cam and crank are either in time or they aren't. I resently repaired a 5.0L Ford (302 V-8) that had a problem like this and it turned out to be the distributor. The rotor drive flang on top of the distributor drive shaft that is timed to that camshaft and holds the "rotor button" had a broken weld and it would "skip" around the shaft on start ups and get to a point of out of time where it would not start or quite when being driven on the road. You could re-time the distributor and it would start and run fine for a short while then do it again. I finally took the cap back off and took hold of the rotor drive flang, minus the rotor button, with a large pair of "water pump" slip joint pliers and found I could rotate the rotor drive flang of the distributor shaft back and forth. Not " a good thing", at all! A reman'ed distributor from the Zone repaired it and she runs like a top. This sound more like the problem your asking about. There is not much probibility, AT ALL, your timing chain is actually "jumping" time. If it were to it would just quite and not crank again.
Your timing chain may be worn to the point it is jumping a tooth and thus changing the timing. If you can hear the chain that is a good sign it is worn. I would inspect the timing chain.
try changing both timing gears
The only way your engine could "jump time" would be if there was a timing chain problem. Step one would be to remove the timing chain cover and see what's going on.
your timing marks are incorrect the timing is off. You'll need to reinstall the timing chian with the right timing marks ask a professional for assistance.
my best opinion is the timing belt has become loose after re doing the timing so many times. this means a new timing belt is needed
Never. The Saturn S series vehicles used a timing chain instead of a timing belt. And the chain is inside the engine, bathed in oil to keep it lubricated. The timing chain should be replaced whenever you rebuild the engine.
It needs a new belt tensioner probably, on needs tensioned properly. firstname.lastname@example.org
It has a timing chain - and you really need to keep up on your oil changes; dirty oil will cause the chain to wear and stretch, which causes other problems.
timing belt has nothing to do with transmission so it is possoble for you to have a timing belt it may be a timing chain also the purpose of the belt or chain is to keep the crank shaft turning in time with the cam shafts yes, the timing belt is independent of the transmission.
On my 2000 S-10 cost about $400.00. My timing chain keeps going out. waranteed part so they must keep replacing it.
The best place to find a diagram of timing chain and gear alignment would be at a Mercedes dealer. Dealers keep many manuals and periodicals listing all the thousands of parts of their vehicles.
Does not have a belt, timing chain only, no maintenance required. Just keep your oil changed regularly.
The chain must be too big. You should be able to tighten it, if not take off a tooth or two. If that still doesn't work, you may need a new chain.
Noisy, and you cannot keep the engine timed.
could be your timing chain.
Timing maybe? Get your timing belt looked at
Typically, "timing cover and gasket" refers to timing chain (vice timing belt) equipped vehicles. Timing chains need oil from the engine for lubrication. To make this happen, there is an opening between the timing chain area and the valve camshaft area. The oil the flows into the timing chain area, then down into the oil pan. In order to keep the oil from spraying all over the rest of the engine (and having the engine break down from oil starvation), a metal 'timing cover' is installed over the timing chain and sprockets. Then, a 'gasket,' made of a soft, oil resistant material, goes between the timing chain cover and the engine block to prevent any leaks. The timing cover is bolted to the engine block and the bolts tightened to a specified torque.
By timing strap, I'm assuming that you mean the timing belt. The Pontaic Vibe uses the 1.8 liter engine also used in the Toyota Matrix and Toyota Corolla. This engine has an internal timing chain and does not require replacement. Keep the oil changed and drive that baby worry free regarding the timing chain.
MOST LIKELY IT NEEDS TO BE TENSIONED PROPERLY OR, THE TENSIONER IS FAULTY.ALSO OVER TIME THE BELTS STRECHES AND NEEDS REPLACEMENT.
There is not scheduled replacement of the timing chain. It will normally last the life of the engine until the engine needs a complete overhaul. Replace it is it is noisy, or you cannot keep the engine timed correctly.
Chances are good, especially if you keep trying to start/run it.
This is like asking "when should I have the cylinders reground or the oil pump replaced. A timing chain is not like a timing belt in that it is not subject to 80,000 mile replacement. So, keep your oil changed every 3000 miles and drive on.Good luck !!!
Depends on what year it is and which engine it has. If it has a pushrod engine in it, it has a timing chain instead of a belt. If it is an overhead cam engine, then it does. Keep in mind that the Malibu was originally a Chevelle model starting in 1964. The Malibu replaced the Chevelle in 1978, so there are a lot of possibilities here.
Go on top of the house. Start jumping. Keep jumping and the bat will come. Keep jumping and you will grab the key.